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Common Mode Chokes are electrical components designed to limit the passage of high frequencies. They operate by creating a magnetic field around them that effectively blocks out any electromagnetic radiation that passes through it. The 744212820 is a Common Mode Choke (CMC) that can be used in a number of applications. This article will discuss in detail the application field and working principle of the 744212820.

Application Field

The 744212820 CMC is ideally suited for high-frequency applications that require precise shielding of electrical signals, such as:

• Pocket size electronic devices
• Television receivers
• PDAs
• Voice recognition systems
• Satellite receivers
• GPS navigation systems
• Cellular phones
• RFID applications

The 744212820 has a low profile, FME feedthrough terminal, which is ideal for space-constrained applications and gives the device a wide range of mounting options. It is rated for frequencies up to 3 GHz and can handle currents of up to 500 mA. This makes it ideal for applications that require accurate shielding and filtering of high-frequency signals.

Working Principle

The 744212820 CMC operates based on the principles of electromagnetic induction. This means that when a current passes through the winding of the device, a magnetic field is generated. This field, in turn, induces a current in any other circuit near it. This allows the 744212820 to limit the passage of any high-frequency signals that may be passing through the area.

The 744212820\'s design also allows it to act as a short-circuit protection device, as it is designed to open the circuit if too much current passes through it. This makes it an ideal device for use in applications where the need for accurate shielding is high but the risk of damaging other components is low.

Finally, the 744212820 CMC is designed to be able to withstand temperatures up to 125°C. This is important for applications such as cellphones, which require components that can handle extreme temperatures without being damaged.

Conclusion

The 744212820 CMC is an ideal component for applications requiring precise shielding of high-frequency signals. It has a low profile and is designed to withstand temperatures up to 125°C, making it ideal for space-constrained and temperature-sensitive applications. Furthermore, its ability to open the circuit if too much current passes through it makes it an excellent choice for short-circuit protection. Overall, the 744212820 CMC is an ideal device for a wide range of high-frequency applications.

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